<!--
 * @Description: 
 * @Author: 赵华宇
 * @Date: 2025-04-21 15:22:54
 * @LastEditors: 赵华宇
 * @LastEditTime: 2025-04-21 15:22:57
-->
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        h1{
            background-color: aqua;
            /* color:rgb(0,255,1) */
            color:rgba(0,0,0,8)
        }
    </style>
</head>
<body>
    <h1>标题颜色</h1>
</body>
</html>